CN213740715U - Banister speed reducer and banister - Google Patents

Abstract

The utility model relates to a floodgate machine technical field discloses a banister speed reducer and banister. The barrier gate speed reducer comprises a shell, a driving device, a screw rod, a sliding assembly, a driving arm assembly, a main shaft and a limiting adjusting assembly, wherein the shell is provided with an accommodating cavity, the shell is further provided with a limiting through hole communicated with the accommodating cavity, the driving device can drive the screw rod to rotate, the screw rod can drive the sliding assembly to axially move along the screw rod when rotating, and the driving arm assembly is driven to rotate to drive the main shaft to rotate when moving. The one end of spacing adjusting part passes and stretches into behind the spacing through-hole and accepts the intracavity, and actuating arm subassembly rotates and stops the motion when to the one end butt with spacing adjusting part, and spacing adjusting part's one end and spacing through-hole sliding connection are in order to adjust to stretch into the length of accepting the intracavity, and then adjust actuating arm subassembly's turned angle scope. Therefore, the banister speed reducer that this embodiment provided can satisfy different turned angle's restriction demand, possesses than stronger flexibility.

Description

Banister speed reducer and banister

[ technical field ] A method for producing a semiconductor device

The utility model relates to a floodgate machine technical field especially relates to a banister speed reducer and banister.

[ background of the invention ]

The barrier gate is used as a channel blocking device and widely applied to a highway toll station, a parking lot entrance and exit, a district factory entrance and the like.

Generally, in order to prevent the shift lever from falling down uncontrollably due to the failure of one of the above components or based on some application scenarios, the barrier gate needs to have a limiting function for limiting the rotation angle of the shift lever.

The stopper is fixed mounting usually near the rotation of actuating arm at traditional banister, and when the actuating arm touched the stopper, the actuating arm just can not continue the syntropy rotation again to reach the rotatory turned angle of restriction actuating arm drive shelves pole. However, the position of the limiting block of the conventional barrier gate is fixed, and the limiting angle of the driving arm is also fixed. Because different application scenes are different in the limit range of the rotating angle, the limit function of the traditional barrier gate has great limitation and cannot be compatible with the limit requirements of various application scenes.

[ Utility model ] content

In order to solve the technical problem, the embodiment of the utility model provides a banister speed reducer and banister, its turned angle scope that can adjust the drive arm subassembly in a flexible way.

The embodiment of the utility model provides a solve its technical problem and adopt following technical scheme:

a barrier gate speed reducer, comprising:

the shell is provided with an accommodating cavity and a limiting through hole communicated with the accommodating cavity;

a drive device;

the screw rod is connected with the driving device, and the driving device can drive the screw rod to rotate;

the sliding assembly is sleeved on the screw rod, and when the screw rod rotates, the sliding assembly can be driven to move along the axial direction of the screw rod;

the screw rod, the sliding assembly and the driving arm assembly are all accommodated in the accommodating cavity, and the main shaft penetrates through the accommodating cavity;

the limiting adjusting assembly is mounted in the limiting through hole, one end of the limiting adjusting assembly penetrates through the limiting through hole and then extends into the containing cavity, the driving arm assembly rotates to the position where the driving arm assembly stops moving when abutted against one end of the limiting adjusting assembly, one end of the limiting adjusting assembly is connected with the limiting through hole in a sliding mode to adjust the length extending into the containing cavity, and then the rotating angle range of the driving arm assembly is adjusted.

Optionally, the casing is followed spacing tight set hole is equipped with in spacing through-hole's the radial, spacing tight set hole with spacing through-hole is linked together, be provided with in the spacing tight set hole and be used for tightly deciding spacing tight set piece of spacing adjusting part, spacing tight set piece with spacing tight set hole screw-thread fit.

Optionally, the number of the limiting fastening holes and the number of the limiting fastening pieces are two, and the two limiting fastening holes are symmetrically arranged on the shell along the center line of the limiting through hole.

Optionally, the limit adjustment assembly comprises:

the limiting support is fixed outside the shell and provided with a limiting threaded hole, and the limiting threaded hole and the limiting through hole are coaxially arranged;

and one end of the limiting adjusting piece sequentially penetrates through the limiting threaded hole and the limiting through hole and then extends into the containing cavity, and the other end of the limiting adjusting piece is in threaded fit with the limiting support.

Optionally, the limiting support is a nut, and the limiting adjusting piece is a bolt.

Optionally, the number of the limiting through holes and the number of the limiting adjusting assemblies are two, and the two limiting through holes are arranged on the shell in a manner of being opposite to each other along a horizontal plane where the center line of the main shaft is located.

Optionally, the banister speed reducer still include the bolster, the bolster set up in spacing adjusting part orientation the one end of drive arm subassembly.

Optionally, the actuating arm subassembly includes linking arm and turning, linking arm one end is connected the slip subassembly, the linking arm other end is connected turning one end, the turning other end is connected the main shaft, during the slip subassembly motion, the drive the linking arm drives the turning rotates, makes the turning drives the main shaft rotates.

Optionally, the crank arm stops moving when rotating to abut against one end of the limiting and adjusting assembly, and when the crank arm abuts against the limiting and adjusting assembly, the central line of the limiting and adjusting assembly is perpendicular to the end face of the crank arm facing the limiting and adjusting assembly.

In a second aspect, an embodiment of the present invention provides a barrier gate, including:

the barrier gate speed reducer;

a lever handle fixed to the main shaft.

Compared with the prior art, in the utility model discloses in the banister speed reducer, the casing is equipped with accepts the chamber, the casing still is equipped with and accepts the spacing through-hole that the chamber is linked together, drive arrangement is connected to the lead screw, drive arrangement can drive the lead screw and rotate, the lead screw is located to the slip subassembly cover, when the lead screw rotates, can drive the axial motion of slip subassembly along the lead screw, slip subassembly is connected to drive arm subassembly one end, the main shaft is connected to the drive arm subassembly other end, when the slip subassembly moves, drive actuating arm subassembly rotates, rotate with the drive main shaft, the lead screw, slip subassembly and drive arm subassembly all accept in accepting the chamber, the main shaft passes and accepts the chamber. Spacing adjusting part installs in spacing through-hole, and the one end of spacing adjusting part stretches into after passing spacing through-hole and accepts the intracavity, and stop motion when drive arm subassembly rotates to the one end butt with spacing adjusting part, and spacing adjusting part's one end and spacing through-hole sliding connection are in order to adjust to stretch into the length of accepting the intracavity, and then adjust the turned angle scope of drive arm subassembly. Therefore, the banister speed reducer that this embodiment provided can satisfy different turned angle's restriction demand, possesses than stronger flexibility.

[ description of the drawings ]

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic structural diagram of a barrier according to an embodiment of the present invention;

FIG. 2 is an exploded view of the barrier gate shown in FIG. 1;

fig. 3 is a longitudinal section of the barrier gate along the axial direction of the screw rod according to one embodiment of the present invention;

fig. 4 is a schematic structural view of a barrier gate in a first motion state according to another embodiment of the present invention, wherein the upper shell is partially cut, and the upper shell and the lower shell are both provided with adjusting fastening holes;

FIG. 5 is a schematic structural diagram of the barrier gate shown in FIG. 4 in a second motion state;

FIG. 6 is a longitudinal sectional view of the barrier gate of FIG. 3 in another state of motion along the axial direction of the lead screw;

fig. 7 is a schematic structural diagram of a sliding assembly according to an embodiment of the present invention, wherein the sliding assembly is an integrated design structure;

fig. 8 is a schematic structural diagram of another sliding assembly provided in an embodiment of the present invention, wherein the sliding assembly is an integrated design structure;

fig. 9 is a longitudinal sectional view of another barrier gate provided in an embodiment of the present invention along the axial direction of the screw rod;

fig. 10 is an enlarged schematic view of a portion F shown in fig. 9.

[ detailed description ] embodiments

In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "electrically connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "bottom", and the like as used herein are used in the description to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Referring to fig. 1, a barrier gate 100 according to an embodiment of the present invention includes a barrier gate reducer 200 and a lever handle 300, the lever handle 300 is installed on the barrier gate reducer 200, wherein the lever handle 300 is installed with a stop lever, the barrier gate reducer 200 drives the lever handle 300 to rotate, and the lever handle 300 drives the stop lever to perform a lever raising or lever lowering operation.

Referring to fig. 2 and fig. 3, the barrier gate reducer 200 includes a housing 400, a driving device 500, a screw 600, a sliding assembly 700, a driving arm assembly 800, a main shaft 900, and a limit adjusting assembly 901. The housing 400 is used to house various components and prevent contamination by impurities such as dust. The driving device 500 can drive the lead screw 600 to rotate, when the lead screw 600 rotates, the sliding assembly 700 can be driven to move along the lead screw 600, when the sliding assembly 700 moves, the driving arm assembly 800 is driven to drive the main shaft 900 to rotate, and the main shaft 900 drives the lever handle 300 to rotate.

In this embodiment, the housing 400 is provided with a receiving cavity 410, the housing 400 is further provided with a limiting through hole 418 communicated with the receiving cavity 410, the screw 600 is connected to the driving device 500, and the driving device 500 can drive the screw 600 to rotate. The sliding assembly 700 is sleeved on the screw rod 600, and when the screw rod 600 rotates, the sliding assembly 700 can be driven to move along the axial direction of the screw rod 600. One end of the driving arm assembly 800 is connected with the sliding assembly 700, the other end of the driving arm assembly 800 is connected with the main shaft 900, when the sliding assembly 700 moves, the driving arm assembly 800 is driven to rotate so as to drive the main shaft 900 to rotate, the lead screw 600, the sliding assembly 700 and the driving arm assembly 800 are all accommodated in the accommodating cavity 410, and the main shaft 900 penetrates through the accommodating cavity 410. Can avoid long-term illumination to the harm of parts such as lead screw 600, sliding component 700, actuating arm subassembly 800 and main shaft 900 like this to and avoided falling dirt or debris to fall into lead screw 600, sliding component 700, actuating arm subassembly 800 and main shaft 900 and lead to each part can not work or the part damage, can improve the utility model discloses the service reliability and the life of banister speed reducer of embodiment.

The limiting adjusting assembly 901 is installed on the limiting through hole 418, one end of the limiting adjusting assembly 701 penetrates through the limiting through hole 418 and then extends into the accommodating cavity 410, the driving arm assembly 800 stops moving when rotating to abut against one end of the limiting adjusting assembly 901, one end of the limiting adjusting assembly 901 is connected with the limiting through hole 418 in a sliding mode so as to adjust the length extending into the accommodating cavity 410, and then the rotating angle range of the driving arm assembly 800 is adjusted.

For example, when the driving arm assembly 800 rotates, the limit adjusting assembly 901 blocks the driving arm assembly 800 from rotating in the counterclockwise direction or the clockwise direction, so as to adjust the range of the rotation angle of the driving arm assembly 800, for example, increase the range of the rotation angle of the driving arm assembly 800, such that the main shaft 900 drives the lever handle 300 to rotate in 0 to 90 degrees. The range of rotation angles of the drive arm assembly 800 is reduced so that the spindle 900 rotates the lever handle 300 between 30 and 60 degrees.

Therefore, the barrier gate speed reducer 200 provided by the embodiment can meet the restriction requirements of different rotation angles, and has relatively strong flexibility.

In some embodiments, the barrier speed reducer 200 further includes a buffer (not shown) disposed at an end of the spacing adjustment assembly 901 facing the driving arm assembly 800. When the limiting adjusting assembly 901 contacts the driving arm assembly 800, the buffer piece can buffer the pressure of the driving arm assembly 800 on the limiting adjusting assembly 901, so that the limiting adjusting assembly 901 and the driving arm assembly 800 are maintained, and the service life is prolonged.

Considering that the rotation angle of the driving arm assembly 800 needs to be controlled in a wide range in some application scenarios, in some embodiments, the number of the limit through holes 418 and the limit adjusting assemblies 901 is two, and the two limit through holes 418 are oppositely arranged on the housing 400 along a horizontal plane where the center line of the spindle 900 is located, for example, one limit through hole 418 is arranged on the first housing 41, another limit through hole 418 is arranged on the second housing 42, and each limit adjusting assembly 901 is installed on the corresponding limit through hole 418.

Therefore, when the screw 600 drives the sliding assembly 700 to move away from the driving device 500, the sliding assembly 700 also drives the driving arm assembly 800 to rotate clockwise, and since the limit adjustment assembly 901 located in the first housing 41 can block the rotation of the driving arm assembly 800, the rotation angle of the driving arm assembly 800 is further limited. When the limiting adjustment assembly 901 retracts away from the accommodating cavity 410, the driving arm assembly 800 can rotate by a larger angle and then can be blocked by the limiting adjustment assembly 901, so that the limiting adjustment assembly 901 increases the rotation angle of the driving arm assembly 800 on the basis of the original rotation angle. When the limiting adjustment assembly 901 extends to a direction close to the accommodating cavity 410, the driving arm assembly 800 rotates a small angle and is blocked by the limiting adjustment assembly 901, so that the limiting adjustment assembly 901 reduces the rotation angle of the driving arm assembly 800 on the basis of the original rotation angle.

Similarly, when the screw 600 drives the sliding assembly 700 to move close to the driving device 500, the sliding assembly 700 also drives the driving arm assembly 800 to rotate counterclockwise, and since the limiting adjustment assembly 901 located on the second housing 42 can block the rotation of the driving arm assembly 800, the rotation angle of the driving arm assembly 800 is further limited. When the limiting adjustment assembly 901 retracts away from the accommodating cavity 410, the driving arm assembly 800 can rotate by a larger angle and then can be blocked by the limiting adjustment assembly 901, so that the limiting adjustment assembly 901 increases the rotation angle of the driving arm assembly 800 on the basis of the original rotation angle. When the limiting adjustment assembly 901 extends to a direction close to the accommodating cavity 410, the driving arm assembly 800 rotates a small angle and is blocked by the limiting adjustment assembly 901, so that the limiting adjustment assembly 901 reduces the rotation angle of the driving arm assembly 800 on the basis of the original rotation angle.

Therefore, the rotation angle of the driving arm assembly 800 is limited and adjusted up and down by the two limit adjusting assemblies 901 arranged up and down, so that the limit adjusting function of the rotation angle of the driving arm assembly 800 is enhanced.

In some embodiments, the limiting adjustment assembly 901 includes a limiting support 931 and a limiting adjustment member 932, the limiting support 931 is fixed outside the housing 400, the limiting support 901 is provided with a limiting threaded hole, and the limiting threaded hole is coaxially disposed with the limiting through hole 418. The one end of spacing regulating part 932 stretches into after passing spacing screw hole and spacing through-hole 418 in proper order and accepts the chamber 410 in, the other end and the spacing support 931 screw-thread fit of spacing regulating part 932.

Therefore, the length of the limiting adjusting piece 932 in the accommodating cavity 410 is changed by rotating the limiting adjusting piece 932, and the limiting adjusting piece 932 is fixed on the limiting through hole 418 through the limiting support 931, so that the purpose of reliably and effectively adjusting the rotating angle of the driving arm assembly 800 is achieved. By adopting the structure, the shell 400 does not need to be provided with tapping and threaded holes, thereby reducing the processing difficulty.

In some embodiments, the limiting seat 931 is a nut and the limiting adjustment 932 is a bolt.

In some embodiments, the structure of the spacing adjustment assembly 901 differs from that provided in the previous embodiments in that: referring to fig. 4 and 5, the housing 400 is provided with a limiting fastening hole 419 along the radial direction of the limiting through hole 418, the limiting fastening hole 419 is communicated with the limiting through hole 418, a limiting fastening piece 933 for fastening the limiting adjustment assembly 901 is arranged in the limiting fastening hole 419, and the limiting fastening piece 933 is in threaded fit with the limiting fastening hole 419.

In consideration of the fact that the spacing adjusting assembly 901 is easily loosened due to vibration or other factors generated during the operation of the barrier gate reducer 200, the spacing tightening piece 933 is arranged to tightly fix the spacing adjusting assembly 901, so that the operational reliability of the spacing adjusting assembly 901 is improved.

In some embodiments, the position-limiting fastening holes 419 may be opened at any suitable position, and the number is not limited to one, in some embodiments, the number of the position-limiting fastening holes 419 and the number of the position-limiting fastening pieces 933 are two, and the two position-limiting fastening holes 419 are symmetrically arranged on the housing 400 along the center line of the position-limiting through hole 418. Therefore, the two limit fasteners 933 can limit the limit adjustment assembly 901 in the left-right direction, preventing the limit adjustment assembly 901 from loosening.

In some embodiments, the housing 400 includes a first housing 41 and a second housing 42, and the first housing 41 and the second housing 42 are mounted together to form a receiving cavity 410. Because first casing 41 and second casing 42 are the discrete structure, can make things convenient for the equipment of the banister speed reducer 200 of the embodiment of the utility model.

The first housing 41 has a fastening hole 4114, a first hole 412, and a second hole 413. The second housing 42 is opened with a fixing hole 421, a third hole 422, and a fourth hole 423. The first hole portion 412 and the third hole portion 422 constitute a first mounting hole, the second hole portion 413 and the fourth hole portion 423 constitute a second mounting hole, and both ends of the main shaft 900 are mounted to the first mounting hole and the second mounting hole, respectively.

In some embodiments, the first housing 41 and the second housing 42 may be molded aluminum alloy parts, zinc alloy parts, or other alloy parts, and may also be molded engineering plastic parts.

The mold forming can enable complex parts to be included on the first shell 41 and the second shell 42, so that the structure is simplified, the shells are formed by the mold integrated with the hole sites, the positioning accuracy is high, machining is avoided, the installation efficiency is improved, and the production cost is reduced. Further, the first housing 41 and the second housing 42 can be formed as an integrally formed housing by the mold molding, and the integrally formed first housing 41 and second housing 42 can be enhanced in strength and reduced in weight.

The driving device 500 is used for generating a driving force to drive the screw 600 to rotate. In some embodiments, the driving device 500 may be located outside the housing 400 and may also be received in the receiving cavity 210.

In some embodiments, the driving device 500 includes a motor and a coupler, the motor is connected to the lead screw 600 through the coupler, and the motor generates a driving force to drive the lead screw to rotate through the coupler.

In some embodiments, the driving device 500 may not be provided with a coupler, an end of the output shaft of the motor, which is away from the motor, is hollow, and has a first key slot inside, and an end of the screw rod is provided with a second key slot, and the output shaft of the motor is fixedly connected with the screw rod through a flat key, wherein a part of the flat key is received in the first key slot, and another part of the flat key is received in the second key slot. Therefore, by adopting the structure, the use of a coupler can be avoided, and the volume of the barrier gate speed reducer is reduced.

It will be appreciated that the drive 500 may also employ other power take off configurations, such as a gear drive configuration, a belt drive configuration, and the like.

The two ends of the screw 600 are respectively installed in the first fixing hole 411 and the second fixing hole 421, wherein a first screw bearing 414 is arranged between one end of the screw 600 and the first fixing hole 411, and the other end of the screw 600 penetrates through the second fixing hole 421 and then is fixedly connected with an output shaft of the driving device 500, so that the driving device 500 can drive the screw 600 to rotate by taking the shaft hole center line of the first screw bearing 414 as a rotation center.

A second screw bearing 424 and a sealing member 425 are disposed between the screw 600 and the second fixing hole 421. The other end of the screw 600 sequentially passes through the second screw bearing 424 and the sealing member 425, so that the other end of the screw 600 is mounted in the second fixing hole 421, wherein the second screw bearing 424 is used for improving the rotation efficiency and the service life of the screw 600, and the sealing member 425 is a skeleton oil seal used for preventing lubricating oil from seeping out of the accommodating cavity 410; the seal 425 may also be a felt oil seal or a hydraulic oil seal, etc.

In some embodiments, the lead screw 600 may be a ball screw, or a "T" type lead screw.

The sliding assembly 700 is sleeved on the lead screw 600, and when the lead screw 600 rotates, the sliding assembly 700 can be driven to move along the lead screw 600. In some embodiments, the sliding assembly 700 includes a slider 71 and a sliding support 72, the slider 71 is sleeved on the lead screw 600, the sliding support 72 is connected to the slider 71, the driving arm assembly 800 is fixed on a side surface of the sliding support 72, and the lead screw 600 drives the sliding support 72 to move linearly through the slider 71, so that the sliding support 72 pushes the driving arm assembly 800 to drive the spindle 900 to rotate.

In some embodiments, the sliding block 71 is provided with a through hole 711, the screw rod 600 passes through the through hole 711 and is in threaded fit with the sliding block 71, the sliding support 72 is provided with a shaft hole 721, the sliding block 71 is fixed in the shaft hole 721, and the central axes of the through hole 711 and the shaft hole 721 are coincident. The sliding assembly 700 provided by the embodiment has a compact structure, and is beneficial to the miniaturization design of the barrier gate reducer 200.

In some embodiments, the slider 71 may be a threaded slider such as a nut, wherein the nut is a ball nut or a "T" nut.

The driving arm assembly 800 is rotated by the sliding assembly 700, and thus the driving arm assembly 800 rotates the main shaft 900. In some embodiments, the driving arm assembly 800 includes a connecting arm 81 and a crank arm 82, one end of the connecting arm 81 is connected to the sliding assembly 700, the other end of the connecting arm 81 is connected to one end of the crank arm 82, the other end of the crank arm 82 is connected to the spindle 900, the lever handle 300 is provided with a connecting hole, one end of the spindle 900 is fixed to a first mounting hole, and the other end of the spindle 900 passes through a second mounting hole and then is fixed to the connecting hole of the lever handle 300, wherein, in some embodiments, the spindle 900 may be in interference fit with the lever handle 300.

When the sliding assembly 700 moves, the connecting arm 81 is driven to rotate around the first common axis of the connecting arm 81 and the crank arm 82, the crank arm 82 is driven to drive the main shaft 900 to rotate around the second common axis of the crank arm 82 and the main shaft 900, and the main shaft 900 drives the lever handle 300 to rotate. In this embodiment, when the crank arm 82 rotates to abut against one end of the spacing adjustment assembly 901, the motion is stopped, and when the crank arm 82 abuts against the spacing adjustment assembly 901, the center line of the spacing adjustment assembly 901 is perpendicular to the end surface of the crank arm 82 facing the spacing adjustment assembly 901. With this structure, it can be ensured that the limit adjusting assembly 901 reliably and stably blocks the rotation of the crank arm 82.

In this embodiment, when the barrier gate 100 needs to perform a rod lifting or rod dropping operation, the driving device 500 starts to work, and drives the driving arm assembly 800 to work through the lead screw 600 and the sliding assembly 700, after the sliding assembly 700 drives the connecting arm 81 to move for a certain stroke, at this time, the rotating speed of the driving device 500 is generally stable, and then the connecting arm 81 drives the connecting lever 82 to rotate, and the connecting lever 82 drives the main shaft 900 to rotate, so that the structure is beneficial to more stable and reliable rod lifting of the barrier gate 100, and the rod lifting effect is improved.

Due to the requirements of some application scenarios, some barrier speed reducers need to have a self-locking function. When the barrier gate is lifted, the stop lever needs to be in a self-locking state, namely needs to be continuously vertical to the ground for a plurality of time periods, and the stop lever can be dropped after a vehicle or a person passes through the stop lever.

Thus, in some embodiments, the main shaft 900 is in a self-locking state when the common perpendicular to the first and second common axes is parallel to the center line of the lead screw 600.

Referring to fig. 6, when the sliding assembly 700 moves, the connecting arm 81 is driven to rotate around the first common axis of the connecting arm 81 and the crank arm 82, so that the connecting arm 81 drives the crank arm 82 to drive the spindle 900 to rotate around the second common axis of the crank arm 82 and the spindle 900, and when a common perpendicular line perpendicular to both the first common axis and the second common axis is parallel to the center line of the lead screw 600, the spindle 900 is in a self-locking state.

Therefore, the present embodiment utilizes the self-locking spindle 900 when the crank arm 82 is parallel to the lead screw 600, and compared with the prior art, the present embodiment completes self-locking through a mechanical structure, and has stronger reliability.

In some embodiments, when the main shaft 900 is in the self-locking state, the rotation axis of the connecting arm 81 when rotating around the sliding assembly 700 and the common perpendicular line of the first common axis are perpendicular to the center line of the lead screw 600. When the main shaft 900 receives an external force, the external force is transmitted to the crank arm 82 through the main shaft. Since the common perpendicular line of the rotation axis and the first common axis is perpendicular to the center line of the lead screw 600, the crank arm 82 applies a pressure perpendicular to the center line of the lead screw 600 to the connecting arm 81, and then the connecting arm 81 transmits the pressure to the lead screw 600, that is, the pressure applied to the lead screw 600 by the connecting arm 81 is perpendicular to the center line of the lead screw 600, and therefore, the pressure has no component force in a direction parallel to the center line of the lead screw 600, and in this state, the self-locking effect of the main shaft 900 is optimal in general.

It can be understood that different application scenarios have different requirements on the self-locking effect, and it is not necessary to simultaneously satisfy two conditions of "the common perpendicular line of the first common axis and the second common axis is parallel to the center line of the screw rod" and "the common perpendicular line of the first common axis and the center line of the screw rod" and, in fact, the common perpendicular line of the rotation axis and the first common axis intersects the center line of the screw rod at a certain acute angle, and thus, it can be understood that, as long as the condition of "the common perpendicular line of the first common axis and the second common axis is parallel to the center line of the screw rod" is satisfied, the self-locking function can be satisfied, and those skilled in the art should understand that any modification or replacement is within the protection scope of the present invention within the content disclosed in this embodiment.

In some embodiments, when the sliding assembly 700 moves to the top end of the lead screw 600, the common perpendicular line of the first common axis and the second common axis is parallel to the center line of the lead screw 600, that is, the main shaft 900 enters the self-locking state as long as the sliding assembly 700 moves to the top end of the lead screw 600. By adopting the structure, on one hand, the logical control requirement of the motor can be simplified, and on the other hand, the rod lifting speed and the self-locking efficiency can be improved.

Referring to fig. 2, in the present embodiment, the connecting arm 81 is provided with a first through hole 811 and a second through hole 812 at two ends thereof, respectively, the sliding support 72 is provided with a first protrusion 722 at a side surface thereof, the crank arm 82 is provided with a second protrusion 821 at one end thereof, and the crank arm 82 is provided with an interference hole 822 at the other end thereof. The first rotating bearing 813 is mounted in the first through hole 811, the second rotating bearing 814 is mounted in the second through hole 812, the first protrusion 722 is received in the shaft hole of the first rotating bearing 813, the second protrusion 821 is received in the shaft hole of the second rotating bearing 814, and the main shaft 900 passes through the interference hole 822 and then is in interference fit with the crank arm 82.

A first shaft sleeve 91 is arranged in the first mounting hole, and a second shaft sleeve 92 is arranged in the second mounting hole. One end of the main shaft 900 penetrates the first bushing 91 so that one end of the main shaft 900 is mounted in the first mounting hole. The other end of the main shaft 900 penetrates the second bushing 92 so that the other end of the main shaft 900 is mounted in the second mounting hole, wherein the main shaft 900 is perpendicular to the screw rod 600.

Therefore, when the sliding support 72 drives the connecting arm 81 to rotate, the first rotating bearing 813 can improve the rotating efficiency and the service life of the connecting arm 81. When the connecting arm 81 drives the crank arm 82 to rotate, the second rotating bearing 814 can improve the rotating efficiency and the service life of the connecting arm 81 and the crank arm 82. When the crank arm 82 drives the main shaft 900 to rotate, the first shaft sleeve 91 and the second shaft sleeve 92 can improve the rotating efficiency and the service life of the main shaft 900.

It will be appreciated that in some embodiments, the sliding assembly 700 is an integrated nut that is disposed on the exterior of the lead screw 600, and the integrated nut is in threaded engagement with the lead screw 600, and the integrated nut is equivalent to integrating the slider 71 with the sliding support 72.

Referring to fig. 7, the connecting arm 81 further includes a setscrew 73, two opposite sides of the sliding assembly 700 are respectively provided with a threaded hole 74, one end of the setscrew 73 is provided with a nut 75, the other end is provided with an external thread, and the external thread of the setscrew 73 is matched with the threaded hole 74. When assembling the connecting arm 71 and the sliding assembly 700, the first rotating bearing 813 is sleeved on the tucking screw 73, and the other end of the tucking screw 73 is assembled into the threaded hole 74, thereby completing the assembly. Among them, the screw cap 75 is for preventing the first rotation bearing 813 from falling off from the setscrew 73.

In some embodiments, the integrated slide assembly 700 can also be configured in other shapes, differing from the structure of the integrated slide assembly 700 set forth in the embodiments above in that:

referring to fig. 8, the sliding assembly 700 is an integrated nut. The sliding assembly 700 further includes nut pins 76, the two nut pins 76 are respectively and symmetrically installed on two opposite sides of the sliding assembly 700, a clamping groove 77 is formed at one end of each nut pin 76, which is far away from the sliding assembly 700, the first rotating bearing 813 is sleeved in the clamping groove 77 of the nut pin 76, and a clamping ring (not shown) is sleeved on the clamping groove 77 and used for preventing the first rotating bearing 813 from falling off from the nut pin 76.

The sliding assembly 700 is of an integrated structure, which is beneficial to improving the assembly efficiency and reducing the cost.

In some embodiments, the driving arm assemblies 800 may adopt a dual-arm driving structure, that is, the number of the driving arm assemblies 800 is two, and the two driving arm assemblies 800 are respectively disposed on two opposite sides of the sliding assembly 700. Referring to fig. 2, two connecting arms 81 are symmetrically disposed, and one end of one connecting arm 81 is mounted on one side of the sliding support 72, and one end of the other connecting arm 81 is mounted on the other side of the sliding support 72. The two crank arms 82 are symmetrically arranged, one end of each crank arm 82 is connected with the other end of the corresponding connecting arm 81, and the other end of each crank arm 82 is connected with the spindle 900.

Generally, when the single-arm driving structure drives the main shaft to rotate, considering factors such as external factors or workpiece assembly accuracy, the single-arm driving structure is prone to shaking, however, when the single-arm driving structure shakes, the single-arm driving structure applies a pulling force to the sliding assembly 700, so that the sliding assembly 700 and the lead screw 600 are stressed unevenly, the sliding assembly 700 is extruded at a certain position of the lead screw 600 in a single direction and intensively, on one hand, the threads at the contact position of the sliding assembly 700 and the lead screw 600 are seriously damaged due to uneven stress, on the other hand, due to the high-speed rotating factor of the lead screw 600, the threads at the contact position of the sliding assembly 700 and the lead screw 600 excessively collect heat, further deepening the damage of the sliding assembly 700 and the lead screw 600, greatly affecting the service life of the sliding assembly 700 and the lead screw 600, and increasing the maintenance cost of the barrier gate.

However, in the embodiment, the sliding assembly 700 simultaneously drives the two connecting arms 81 to rotate, each connecting arm 81 also drives the corresponding crank arm 82 to rotate, and due to the adoption of the double-arm driving structure, the threads at the contact position of the sliding assembly 700 and the lead screw 600 are uniformly stressed, so that the wear of the threads is reduced, the service life of the sliding assembly 700 and the lead screw 600 is prolonged as a whole, and the maintenance cost of the barrier gate is reduced.

In order to reliably and stably rotate the lead screw 600 around the first lead screw bearing 414, the lead screw 600 and the first lead screw bearing 414 need to be fastened in the accommodating cavity 410. Therefore, in some embodiments, the barrier speed reducer 200 is provided with a slack adjuster for the slack screw 600 and the first screw bearing 414.

Referring to fig. 3, in some embodiments, the slack adjuster includes a slack adjuster 415, and the first housing 41 is provided with a fastening hole 41144 at the first fixing hole 411 for communicating with the outside, it is understood that the first fixing hole 411 and the fastening hole 41144 may be regarded as a through hole or divided into two through holes.

The slack adjuster 415 is mounted in the fastening hole 4114, one end of the slack adjuster 418 passes through the fastening hole 4114 and abuts against the first screw bearing 414, and one end of the slack adjuster 415 can move along the axial direction of the fastening hole 4114 to adjust the axial pressure applied to the first screw bearing 414, for example, when the slack adjuster 415 applies a large pressure to the first screw bearing 414 toward the screw 600, the screw 600 and the first screw bearing 414 can be fastened in the receiving cavity 410, and vice versa.

In this embodiment, since the tightness adjusting assembly 415 can adjust the pressure applied to the first screw bearing 414, the first screw bearing 414 and the screw 600 can be loosened or fastened at any time, quickly and efficiently, and thus the components can be assembled quickly and the production efficiency can be improved.

In general, the inventors found that: in the prior art, when the lead screw 600 and the first lead screw bearing 414 are fastened, spacers with different thicknesses are required to be added in the fastening hole 4114 in an attempt to effectively fasten the lead screw 600 and the first lead screw bearing 414, so that an assembly engineer needs to spend a lot of time on finding a spacer with a proper thickness, which results in low production efficiency, but in the present embodiment, since the tightness adjusting assembly 415 can adjust the pressure applied to the first lead screw bearing 414, the first lead screw bearing 414 and the lead screw 600 can be loosened or fastened quickly and efficiently at any time, thereby quickly assembling components and improving production efficiency.

In some embodiments, the contact area of the slack adjuster 415 and the first screw bearing 414 is greater than or equal to the surface area of the first screw bearing 414 facing the slack adjuster 415, so that the slack adjuster 415 can apply pressure to any position of the outer ring of the first screw bearing 414 in all directions, thereby ensuring reliable and effective pressure application to the first screw bearing 414 to tighten the screw 600 and the first screw bearing 414.

In some embodiments, the first fixing hole 411 is further provided with a pressing piece 416, the pressing piece 416 is installed between the slack adjuster 415 and the first screw bearing 414, wherein the upper and lower surfaces of the pressing piece 416 abut against the slack adjuster 415 and the first screw bearing 414, respectively, so that the slack adjuster 415 can transmit pressure to the first screw bearing 414 through the pressing piece 416 by applying pressure only at any position of the pressing piece 416, for example, the contact area between the slack adjuster 415 and the pressing piece 416 is smaller than the contact area between the pressing piece 416 and the first screw bearing 414, that is, the slack adjuster 415 can be configured to be small without the end area of the slack adjuster 415 facing the first screw bearing 414 being larger than or equal to the surface of the first screw bearing 414 facing the slack adjuster 415, and can also effectively apply pressure to the first screw bearing 414 to reduce the volume of the slack adjuster 415, the raw material use of the tightness adjusting component 415 is saved, and the production cost is reduced. The tabs 416 may be metal washers or other materials.

In some embodiments, the slack adjustment assembly 415 includes a screw assembly, a bolt assembly, or the like. Generally, when a member such as a screw or a bolt is used as the slack adjuster 415 in an actual production process, the member tends to be short. Based on practical considerations, and in order to meet some application scenarios for tightness adjustment of the screw and the bearing, in some embodiments, the slack adjustment assembly 415 includes a first slack adjustment member and a second slack adjustment member, the first slack adjustment member and the second slack adjustment member being coaxially disposed within the tightening hole and threadedly engaged with the tightening hole, the first slack adjustment member abutting the first lead screw bearing 414, the second slack adjustment member abutting the first slack adjustment member and being capable of driving the first slack adjustment member to rotate within the tightening hole, for example, when the end surface of the first elastic adjusting piece facing the second elastic adjusting piece is provided with a groove, the end of the second elastic adjusting piece facing the first elastic adjusting piece is provided with a convex block, and the second elastic adjusting piece rotates towards the first elastic adjusting piece, the lug can block in the recess, so, when second elasticity adjusting part rotates once more, can drive first elasticity adjusting part and rotate.

It will be appreciated that the first slack adjuster and the second slack adjuster can be configured in any suitable configuration to allow the first slack adjuster to rotate when the second slack adjuster rotates.

To assemble the slack adjustment assembly 415, a user may first assemble a first slack adjustment member in the fastener hole and then assemble a second slack adjustment member.

When elasticity lead screw 600 and first lead screw bearing 414, the user can rotate the second elasticity regulating part, and the second elasticity regulating part drives first elasticity regulating part rotatory for first elasticity regulating part butt first lead screw bearing 414, thereby realize the purpose of elasticity lead screw 600 and first lead screw bearing 414.

In some embodiments, the slack adjustment assembly 415 includes a slack support 4151 and a slack adjustment member 4152, the slack support 4151 is mounted to the exterior of the housing 400, and the slack support 4151 is provided with a threaded slack hole that is coaxially disposed with the fastening hole 4114. One end of the slack adjuster 4152 passes through the slack threaded hole and the fastening hole 4114 in turn and abuts against the first screw bearing 414, and the other end of the slack adjuster 4152 is in threaded engagement with the slack support 4151.

Therefore, the pressure of the slack adjuster 4152 and the first screw bearing 414 is changed by rotating the slack adjuster 4152, and the slack adjuster 4152 is fixed to the fastening hole 4114 by the slack holder 4151, thereby achieving the purpose of reliably and effectively tightening the screw 600 and the first screw bearing 414. By adopting the structure, the shell 400 does not need to be provided with tapping and threaded holes, thereby reducing the processing difficulty.

In some embodiments, the slack support 4151 comprises a nut and the slack adjuster 4152 comprises a bolt.

In some embodiments, the principle of slack adjustment provided in fig. 2 and 3 is different in that: referring to fig. 9 and 10, the first housing 41 is provided with an adjusting fastening hole 417 along a radial direction of the fastening hole 4114, the adjusting fastening hole 417 is communicated with the fastening hole 4114, an adjusting fastening piece 4153 for fastening the tightness adjusting assembly 415 is disposed in the adjusting fastening hole 417, and the adjusting fastening piece 4153 is threadedly engaged with the adjusting fastening hole 417.

Considering that the slack adjuster 415 is easily loosened by vibration or other factors generated during operation of the barrier speed reducer 200, the adjusting fastener 4153 is provided to fasten the slack adjuster 415, thereby improving the operational reliability of the slack adjuster 415.

In some embodiments, the adjusting fastening holes 417 may be opened at any suitable position and the number is not limited to one, for example, the number of the adjusting fastening holes 417 and the number of the adjusting fastening pieces 4153 are two, and the two adjusting fastening holes 417 are symmetrically arranged on the housing 41 along the center line of the fastening hole 4114. Therefore, the two adjustment fastening pieces 4153 can limit the slack adjuster 415 in the left-right direction, and prevent the slack adjuster 415 from being loosened.

Known from above-mentioned each embodiment, the banister speed reducer that this embodiment provided has integrateed lead screw transmission structure, actuating arm transmission structure, the spacing of tight regulation structure, turned angle and has adjusted the structure, and it integrates the height, and is small, and the good reliability. Compared with the traditional barrier gate, when the barrier gate function is realized, the traditional barrier gate is characterized in that all structural parts are installed in a barrier gate case, the barrier gate case is not a shell of the barrier gate speed reducer explained in each embodiment, the existing barrier gate case on the market is only used for placing all structural parts, and is a square case frame, and the barrier gate is inconvenient to assemble, use and maintain, easy to damage and poor in reliability. By adopting the barrier gate speed reducer provided by the text, an engineer finishes the function configuration of the barrier gate speed reducer according to the user requirement when leaving a factory, and the barrier gate speed reducer and some parts can be assembled on site only by carrying the barrier gate speed reducer during on-site assembly. Moreover, even though the structural components caused by the high integration of the barrier gate speed reducer are more, all the structural components are intensively installed in the shell, so that the structure is compact, the barrier gate speed reducer is not easy to expose in the external environment and is easy to damage, especially for the long-term use of the barrier gate in the outdoor environment, the adoption of the integrated and compact barrier gate speed reducer is particularly important, the maintenance cost is greatly reduced, and the working reliability is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. The utility model provides a banister speed reducer which characterized in that includes:

the shell is provided with an accommodating cavity and a limiting through hole communicated with the accommodating cavity;

a drive device;

the screw rod is connected with the driving device, and the driving device can drive the screw rod to rotate;

the sliding assembly is sleeved on the screw rod, and when the screw rod rotates, the sliding assembly can be driven to move along the axial direction of the screw rod;

the screw rod, the sliding assembly and the driving arm assembly are all accommodated in the accommodating cavity, and the main shaft penetrates through the accommodating cavity;

the limiting adjusting assembly is mounted in the limiting through hole, one end of the limiting adjusting assembly penetrates through the limiting through hole and then extends into the containing cavity, the driving arm assembly rotates to the position where the driving arm assembly stops moving when abutted against one end of the limiting adjusting assembly, one end of the limiting adjusting assembly is connected with the limiting through hole in a sliding mode to adjust the length extending into the containing cavity, and then the rotating angle range of the driving arm assembly is adjusted.

2. The barrier gate reducer according to claim 1,

the casing is followed spacing tight set hole radially is equipped with of spacing through-hole, spacing tight set hole with spacing through-hole is linked together, be provided with in the spacing tight set hole and be used for tightly deciding spacing tight set piece of spacing adjusting part, spacing tight set piece with spacing tight set hole screw-thread fit.

3. The barrier gate reducer according to claim 2,

the number of the limiting fastening holes and the number of the limiting fastening pieces are two, and the two limiting fastening holes are symmetrically arranged on the shell along the central line of the limiting through hole.

4. The barrier gate reducer of claim 1, wherein the limit adjustment assembly comprises:

the limiting support is fixed outside the shell and provided with a limiting threaded hole, and the limiting threaded hole and the limiting through hole are coaxially arranged;

and one end of the limiting adjusting piece sequentially penetrates through the limiting threaded hole and the limiting through hole and then extends into the containing cavity, and the other end of the limiting adjusting piece is in threaded fit with the limiting support.

5. The barrier gate reducer according to claim 4, wherein the limit support is a nut, and the limit adjuster is a bolt.

6. The barrier gate speed reducer according to claim 1, wherein the number of the limiting through holes and the number of the limiting adjusting assemblies are two, and the two limiting through holes are oppositely arranged on the housing along a horizontal plane where a center line of the main shaft is located.

7. The barrier gate speed reducer according to any one of claims 1 to 6, further comprising a buffer member disposed at an end of the spacing adjustment assembly facing the drive arm assembly.

8. The barrier gate speed reducer according to any one of claims 1 to 6, wherein the driving arm assembly comprises a connecting arm and a connecting lever, one end of the connecting arm is connected to the sliding assembly, the other end of the connecting arm is connected to one end of the connecting lever, the other end of the connecting lever is connected to the main shaft, and when the sliding assembly moves, the connecting arm is driven to drive the connecting lever to rotate, so that the connecting lever drives the main shaft to rotate.

9. The barrier gate speed reducer according to claim 8, wherein the connecting lever stops moving when rotating to abut against one end of the limit adjusting assembly, and when the connecting lever abuts against the limit adjusting assembly, a center line of the limit adjusting assembly is perpendicular to an end surface of the connecting lever facing the limit adjusting assembly.

10. A barrier gate, comprising:

a barrier gate reducer according to any one of claims 1 to 9;

a lever handle fixed to the main shaft.

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